How to add a repeated element using a button click example code is given bellow I am not able to set proper event that can add multiple div element based on click.
const Form = document.createElement('form)
const Input = document.createElement('input')
const Button = document.createElement('button')
const NewDiv = document.createElement('div').className = "repeatedBlock"
NewDiv.append(Input)
NewDiv.append(Button)
Form.append(NewDiv)
Button.onclick = function changeContent() {
// append multiple NewDiv in the Form element based on every click
}
In this code, I have created a form, then call a function which creates div and bind event inside it. Let me know if required more details on this.
Change name, provide id to each field. These are up to you.
const Form = document.createElement('form');
Form.id = "form";
document.body.appendChild(Form);
const Button = document.createElement('button') ;
Button.textContent ="Click";
Button.addEventListener("click", function(e){ e.preventDefault(); createDiv() });
Form.appendChild(Button);
createDiv();
function createDiv() {
var i = document.getElementById('form');
const NewDiv = document.createElement('div');
const Input = document.createElement('input') ;
NewDiv.append(Input);
i.appendChild(NewDiv);
}
Only a single Button
const Form = document.createElement('form');
const Button = document.createElement('button')
document.body.appendChild(Form);
Button.innerHTML = "Go";
Button.classList.add("formBtn");
window.onload = generateNew;
Form.appendChild(Button)
var x = 0;
function generateNew(e){
x++;
e.preventDefault();
const Input = document.createElement('input')
const NewDiv = document.createElement('div')
NewDiv.classList.add( "repeatedBlock" );
Input.value = "Input #"+x;
NewDiv.append(Input);
Form.append(NewDiv);
setEvents();
}
function setEvents(){
var Buttons = document.querySelectorAll(".formBtn");
for(i = 0; i < Buttons.length; i++){
Buttons[i].addEventListener("click", generateNew);
}
}
Related
I have created a list, which creates a new paragraph, with the value of the input field and adds the value of the input field into an array, if the add-Button is pressed. Each paragraph has a delete Button, which removes the paragraph visually, if pressed. Now I want that the Input of the paragraph also gets removed from the array.
For example lets say, that the array usernames includes usernames[1] = Lukas, usernames[2] = Martin, usernames[3] = Bob and I want to delete the paragraph, which includes Martin.
How can I create a function, where the paragraphs content also automatically gets removed from the array usernames. I would be very thankful for some help.
Here is my code:
let name = document.getElementById('name');
let addButton = document.getElementById('button');
let output = document.getElementById('output')
let usernames = [];
addButton.addEventListener('click', function() {
usernames.push(document.getElementById('name').value)
console.log(usernames)
let paragraph = document.createElement('ul')
paragraph.innerText = document.getElementById('name').value
output.appendChild(paragraph)
let deleteButton = document.createElement('button')
deleteButton.innerHTML = "X"
paragraph.appendChild(deleteButton)
deleteButton.addEventListener('click', function() {
output.removeChild(paragraph)
})
})
You can find an element in the array by name and remove it from there:
const usernameToRemove = usernames.indexOf(name => name === paragraph.innerText);
usernames.splice(usernameToRemove, 1);
let name = document.getElementById('name');
let addButton = document.getElementById('button');
let output = document.getElementById('output')
let usernames = [];
addButton.addEventListener('click', function() {
usernames.push(document.getElementById('name').value)
console.log(usernames)
let paragraph = document.createElement('ul')
paragraph.innerText = document.getElementById('name').value
output.appendChild(paragraph)
let deleteButton = document.createElement('button')
deleteButton.innerHTML = "X"
paragraph.appendChild(deleteButton)
deleteButton.addEventListener('click', function() {
const usernameToRemove = usernames.indexOf(name => name === paragraph.innerText);
usernames.splice(usernameToRemove, 1);
output.removeChild(paragraph)
})
})
<input id="name">
<button id="button">button</button>
<div id="output">output</div>
Every time the event handler to delete an item is called, just collect all of the text of each item and convert it into an array.
del.addEventListener('click', function() {
this.closest('li').remove();
usernames = [...list.querySelectorAll('li')].map(item => item.textContent);
console.log(usernames);
});
/*
This removes an <li>, if you don't change your "paragraph" then
change 'li' to 'ul'
*/
const user = document.getElementById('user');
const add = document.querySelector('.add');
const list = document.querySelector('.list')
let usernames = [];
add.addEventListener('click', function() {
let name = user.value;
user.value = '';
usernames.push(name);
console.log(usernames);
const item = document.createElement('li');
item.textContent = name+' ';
list.append(item);
const del = document.createElement('button');
del.textContent = "X";
item.append(del);
del.addEventListener('click', function() {
this.closest('li').remove();
usernames = [...list.querySelectorAll('li')].map(item => item.textContent);
console.log(usernames);
});
});
<input id='user'><button class='add'>ADD</button>
<ul class='list'></ul>
Thank you for your answers, but unfortunately the inner Text of the delete Button gets added to the array content, if something gets deleted, because it is part of the 'li' component. I simply created a div which includes the name and the delete Button to solve the problem. But nevertheless thank you for your help. Thats the working code:
const user = document.getElementById('user');
const add = document.querySelector('.add');
const list = document.querySelector('.list')
let usernames = [];
add.addEventListener('click', function() {
let name = user.value;
user.value = '';
usernames.push(name);
console.log(usernames);
const paragraph = document.createElement('div')
paragraph.style.display = 'flex'
const item = document.createElement('li');
item.textContent = name + ' ';
list.append(paragraph);
paragraph.append(item)
const del = document.createElement('button');
del.textContent = "X";
paragraph.append(del);
del.addEventListener('click', function() {
this.closest('div').remove();
usernames = [...list.querySelectorAll('li')].map(item => item.textContent);
console.log(usernames);
});
});
I have 1 function that creates a new checkbox with a delete button to remove it. However when using onclick for the delete button, it causes the it to be deleted when the create checkbox is activated so that nothing is there in the first place.
<script>
var list = document.getElementById("list");
var i = 0;
function add_client(form) {
var div = document.createElement("div");
div.setAttribute("id", "div"+i.toString())
var check = document.createElement("input")
check.setAttribute("type", "checkbox");
check.setAttribute("id", "check"+i.toString());
var label = document.createElement("label");
label.setAttribute("for", "check"+i.toString());
label.setAttribute("id", "label")
txtNode = document.createTextNode(form.value);
label.appendChild(txtNode);
var br = document.createElement("br");
div.appendChild(check);
div.appendChild(label);
list.appendChild(div)
i++;
var del = document.createElement("input");
del.setAttribute("type", "button");
del.setAttribute("value", "Delete");
del.setAttribute("id", "del")
div.appendChild(del);
del.onclick = del.remove();
div.appendChild(br);
}
</script>
i know this is a DOM issue but cannot get around it.... any ideas?
I have several buttons on my site that call a script to open the content into full screen and I also want to be able to click off the created div to close it. This works but after opening one container, which is deleted after, my program produces errors trying to click another button.
function closeDiv(evt) {
const maindiv = document.getElementById('div3');
let targetElement = evt.target;
do {
if (targetElement == maindiv.childNodes[1]) {
return;
}
targetElement = targetElement.parentNode;
} while (targetElement);
var viewpost = maindiv.childNodes[1];
viewpost.parentNode.removeChild(viewpost);
maindiv.classList.remove('viewcontainer');
};
function buttonClick(button) {
var div = button.parentElement.parentElement;
var clone = div.cloneNode(true);
var element = div.childNodes;
var username = element[1].innerText;
var title = element[7].innerText;
var contenttext = div.childNodes[3].value;
var clone = document.createElement('div');
clone.classList.add('viewcontainercon');
var viewuser = document.createElement('p');
viewuser.classList.add('viewcontaineruser');
var text = document.createTextNode(username);
viewuser.appendChild(text);
clone.appendChild(viewuser)
var viewtitle = document.createElement('p');
viewtitle.classList.add('viewcontainertitle');
var text = document.createTextNode(title);
viewtitle.appendChild(text);
clone.appendChild(viewtitle);
var viewcontent = document.createElement('p');
viewcontent.classList.add('viewcontainercontent');
var text = document.createTextNode(contenttext);
viewcontent.appendChild(text);
clone.appendChild(viewcontent);
document.getElementById('div3').classList.add('viewcontainer');
document.getElementById('div3').appendChild(clone);
document.addEventListener("click", function(event){
var isClickInside = button.contains(event.target);
if (!isClickInside) {
closeDiv(event);
}
});
}
The error is specifically `viewpost is undefined' in the closeDiv() function, which is strange since that shouldn't be called until after the click. Any ideas?
*This is happening inside a larger block of code, in a for loop. See end of post for entire loop.
I've read all of the posts that seem to be about this subject, but I'm still lost.
I'm trying to assign an onclick event to a checkbox. The function being assigned to the onclick event needs to have access to a variable that is available in the scope where the checkbox is defined (idvariable).
var idvariable = parentChildList[i].children[j]["subjectid"];
var input = document.createElement("input");
input.type = "checkbox";
input.value = "";
input.onclick = function () {
return clicked(idvariable);
};
function clicked(id) {
alert(id);
};
I've tried every variation of inline and named functions, but I can't figure out how to give the clicked function access to idvariable. In this example above, the value of that variable is undefined.
Or, if I try it with this way:
var input = document.createElement("input");
input.type = "checkbox";
input.value = "";
var idvariable = parentChildList[i].children[j]["subjectid"];
input.onclick = function (idvariable) {
return clicked(idvariable);
};
function clicked(id) {
alert(id);
};
I get an alert that says [object MouseEvent]. Same with the following where I removed the () from the method name I'm assigning to the onclick event:
var idvariable = parentChildList[i].children[j]["subjectid"];
input.onclick = function () {
return clicked;
}(idvariable);
function clicked(id) {
return alert(id);
};
*entire loop:
for (var i = 0; i < parentChildList.length; i++) {
var row = table1.insertRow(-1);
var cell = row.insertCell(0);
cell.innerHTML =
"<h4 class=\"panel-title\"><a data-toggle=\"collapse\" data-parent=\"#accordion\" href=\"#collapse" + i + "\">" + parentChildList[i]["title"] + "</a></h4>";
if (parentChildList[i].children.length > 0) {
var row2 = table1.insertRow(-1);
var cell2 = row2.insertCell(0);
var table2 = document.createElement("table");
table2.className = "collapse";
table2.id = "collapse" + i;
cell2.appendChild(table2);
for (var j = 0; j < parentChildList[i].children.length; j++) {
var row3 = table2.insertRow(-1);
var cell3 = row3.insertCell(0);
var div = document.createElement("div");
div.className = "checkbox";
var label = document.createElement("label");
label.innerText = parentChildList[i].children[j]["title"];
var input = document.createElement("input");
input.type = "checkbox";
input.value = "";
input.setAttribute('subj', idvariable);
var idvariable = parentChildList[i].children[j]["subjectid"];
alert(idvariable);
input.onclick = function () {
return clicked(this.getAttribute('subj'));
};
function clicked(id) {
return alert(id);
};
cell3.style.padding = "0px 0px 0px 10px";
cell3.style.fontsize = "x-small";
cell3.appendChild(div);
div.appendChild(label);
label.insertBefore(input, label.childNodes[0]);
}
}
}
onclick handler receives Event object. If a handler attached as elem.onclick=handler then the element is available inside the handler as this. So this is workaround.
var idvariable = parentChildList[i].children[j]["subjectid"];
var input = document.createElement("input");
input.type = "checkbox";
input.value = "";
input.setAttribute('data-subj', idvariable);
input.onclick = function () {
return clicked(this.getAttribute('data-subj'));
};
function clicked(id) {
alert(id);
};
You will have to append the checkbox to some existing element first, using the following code.
var element = document.getElementById("one").appendChild(input);
Then you can get the parent by using something like the following...
var x = document.getElementById("someId").parentElement;
where x will contain the parent element.
This link https://stackoverflow.com/a/9418326/886393 is about custom data in an event (custom event). Hope that helps.
Thanks
Paras
When a client clicks the "buy" button, I create a popup on screen which allows them to fill in a purchase form. On the poput I want to have a "x" button so they can close it and return to the main website.
The code I run to generate the popup is:
var o = document.createElement('div');
o.className = 'overlay';
var p = document.createElement('div');
p.className = 'buyticketid';
p.setAttribute('id','buy-ticket');
var cb = document.createElement('p');
cb.className = 'closeButton';
cb.setAttribute('onclick','close()');
cb.setAttribute('title','Close');
cb.setAttribute('id','close-btn');
var x = document.createTextNode('x');
cb.appendChild(x);
p.appendChild(cb);
document.getElementsByTagName('body')[0].appendChild(o);
document.getElementsByTagName('body')[0].appendChild(p);
The code I use to try and delete the popup (ID = 'buy-ticket') is:
function close(){
var element = document.getElementById("buy-ticket");
element.parentNode.removeChild(element);
}
For some reason when I click the close button nothing happens. If anyone could point me in the right direction that would be awesome.
you can assign a click handler to a dom element like this: element.onclick = callback; where callback is your callback function.
This works as expected:
function close(){
var element = document.getElementById("buy-ticket");
element.parentNode.removeChild(element);
}
var o = document.createElement('div');
o.className = 'overlay';
var p = document.createElement('div');
p.className = 'buyticketid';
p.setAttribute('id','buy-ticket');
var cb = document.createElement('p');
cb.className = 'closeButton';
cb.onclick = close;
cb.setAttribute('title','Close');
cb.setAttribute('id','close-btn');
var x = document.createTextNode('x');
cb.appendChild(x);
p.appendChild(cb);
document.getElementsByTagName('body')[0].appendChild(o);
document.getElementsByTagName('body')[0].appendChild(p);